Number | Date | Country | Kind |
---|---|---|---|
63-286706 | Nov 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4058558 | Cousse et al. | Nov 1977 |
Entry |
---|
Ruegg et al., Chemical Abstracts, vol. 70(15), entry 68003d (1969). |
Ruegg et al., Chemical Abstracts, vol. 72(26), entry 78757h (1970). |